package com.heima.behavior.service.impl;

import com.alibaba.fastjson.JSON;
import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.behavior.service.ApLikesBehaviorService;
import com.heima.common.constants.article.HotArticleConstants;
import com.heima.common.exception.CustException;
import com.heima.model.behavior.dtos.LikesBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApLikesBehavior;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.mess.UpdateArticleMess;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.pojos.ApUser;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;

import java.util.Date;

@Service
public class ApLikesBehaviorServiceImpl implements ApLikesBehaviorService {

    @Autowired
    ApBehaviorEntryService apBehaviorEntryService;

    @Autowired
    MongoTemplate mongoTemplate;

    @Autowired
    RabbitTemplate rabbitTemplate;

    @Override
    public ResponseResult like(LikesBehaviorDTO dto) {
        // 1. 校验参数
        if (dto == null) {
            CustException.cust(AppHttpCodeEnum.PARAM_INVALID);
        }
        //    点赞需要登录
        ApUser user = AppThreadLocalUtils.getUser();
        if (user == null) {
            CustException.cust(AppHttpCodeEnum.NEED_LOGIN, "用户未登录");
        }
// 2. 根据当前登录用户id查询行为实体对象
        ApBehaviorEntry apBehaviorEntry = apBehaviorEntryService.findByUserEquipmentId(user.getId(), dto.getEquipmentId());
// 3. 如果是点赞操作  判断是否已经点过赞
        Query articleId = Query.query(Criteria.where("entryId").is(apBehaviorEntry.getId()));
        ApLikesBehavior one = mongoTemplate.findOne(articleId, ApLikesBehavior.class);
        if (dto.getOperation() == 0) {
// 4. 没有点过赞则 像mongo点赞集合中 添加点赞数据
            ApLikesBehavior apLikesBehavior = new ApLikesBehavior();
            apLikesBehavior.setEntryId(String.valueOf(user.getId()));
            apLikesBehavior.setCreatedTime(new Date());
            apLikesBehavior.setEntryId(apBehaviorEntry.getId());
            apLikesBehavior.setType(dto.getType());
            apLikesBehavior.setArticleId(dto.getArticleId());
            mongoTemplate.save(apLikesBehavior);



        } else {
// 5. 如果是取消点赞操作  在mongo点赞集合中 删除对应点赞数据
            Query query = Query.query(Criteria.where("entryId").is(apBehaviorEntry.getId()));
            mongoTemplate.remove(query, ApLikesBehavior.class);
        }
        UpdateArticleMess mess = new UpdateArticleMess();
        mess.setType(UpdateArticleMess.UpdateArticleType.LIKES);
        mess.setArticleId(dto.getArticleId());
        mess.setAdd(dto.getOperation()==0?1:-1);
        //向mq发送消息
        rabbitTemplate.convertAndSend(HotArticleConstants.HOT_ARTICLE_SCORE_BEHAVIOR_QUEUE, JSON.toJSONString(mess));
        return ResponseResult.okResult();
    }
}

